RecycleView 单选 以及多选单选互斥两种状态 和多选 ![在这里插入图片描述](https://img-blog.csdnimg.cn/20190721111508473.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2J4bGxvdmU=,size_16,color_FFFFFF,t_70


package com.example.beey;import android.os.Bundle;import android.view.View;import android.widget.Button;import androidx.appcompat.app.AppCompatActivity;import androidx.recyclerview.widget.LinearLayoutManager;import androidx.recyclerview.widget.RecyclerView;import com.chad.library.adapter.base.BaseQuickAdapter;import com.example.beey.Ada;import com.example.beey.R;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;public class MainActivity extends AppCompatActivity {    private RecyclerView mRe;    Listmlist=new ArrayList<>();    Map map=new HashMap<>();    private Ada adddd;    private String string="單選互斥";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Button button1 = findViewById(R.id.button1);        Button button2= findViewById(R.id.button2);        Button button3= findViewById(R.id.button3);        mRe= findViewById(R.id.rec);        button1.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                adddd.setModel("單選互斥");                string="單選互斥";            }        });        button2.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                adddd.setModel("單選");                string="單選";            }        });        button3.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                adddd.setModel("多選");                string="多選";            }        });        for (int i = 0; i <10 ; i++) {            mlist.add(i+"//");            map.put(i,false);        }        mRe.setLayoutManager(new LinearLayoutManager(this));        adddd = new Ada(map,mlist);        mRe.setAdapter(adddd);        adddd.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() {            @Override            public void onItemClick(BaseQuickAdapter adapter, View view, int position) {                switch (string){                    case "單選":                    case "單選互斥":                        adddd.getindex(position);                        break;                    case "多選":                        if(map.get(position)==false){                            map.put(position,true);                        }else {                            map.put(position,false);                        }                        break;                }                adddd.notifyDataSetChanged();            }        });    }}
package com.example.beey;import android.annotation.SuppressLint;import android.graphics.Color;import android.widget.TextView;import androidx.annotation.Nullable;import com.chad.library.adapter.base.BaseQuickAdapter;import com.chad.library.adapter.base.BaseViewHolder;import com.example.beey.R;import java.util.List;import java.util.Map;public class Ada extends BaseQuickAdapter {    Map map;    public Ada(Map map, @Nullable List data) {        super(R.layout.activity_mn, data);        this.map = map;    }    @SuppressLint("ResourceAsColor")    @Override    protected void convert(BaseViewHolder helper, String item) {        TextView d = helper.getView(R.id.dd);        switch (stype){            case "單選互斥":                if (helper.getLayoutPosition() == index) {                    if (map.get(index) == false) {                        map.put(index, true);                        d.setBackgroundColor(Color.parseColor("#eeccff"));                    } else {                        map.put(index, false);                        d.setBackgroundColor(Color.parseColor("#cceecc"));                    }                } else {                    map.put(helper.getLayoutPosition(), false);                    d.setBackgroundColor(Color.parseColor("#cceecc"));                }                break;            case "單選":                if (helper.getLayoutPosition() == index) {                    d.setBackgroundColor(Color.parseColor("#eeccff"));                } else {                    d.setBackgroundColor(Color.parseColor("#cceecc"));                }                break;            case "多選":                if (map.get(helper.getLayoutPosition()) == false) {                    d.setBackgroundColor(Color.parseColor("#eeccff"));                } else {                    d.setBackgroundColor(Color.parseColor("#cceecc"));                }                break;        }    }    //單選兩種狀態 互斥    private int index;    public void getindex(int index) {        this.index = index;    }    private String stype="def";    public void setModel(String stype) {        this.stype = stype;        notifyDataSetChanged();    }}

下载链接地址
https://download.csdn.net/download/bxllove/11390877

更多相关文章

  1. 修改ExpandableListView前面展开小图标
  2. 【Android】Android开源项目分类汇总
  3. Cocos2d-x12和NDK-r8编译android
  4. GitHub 上一些优秀的 Android(安卓)开源项目
  5. Android(安卓)图文数据JSON解析，金山词霸每日一句API的调用
  6. android CallCard.java/updateState(Phone phone)分析
  7. android实时监听网络状态并在断网的情况下打开网络设置
  8. Android状态栏微技巧(推荐)
  9. android解决FragmentStatePagerAdapter 造成重新绘制fragment状

随机推荐

  1. Android(安卓)blueZ HCI（一）：hciconfig实现
  2. Android(安卓)Glide4.0以上版本保存Gif文
  3. 解决android8以上Only fullscreen opaque
  4. React Native开发和调试工具
  5. Android(安卓)AudioSystem模块分析
  6. GA android shutting down vm
  7. Android(安卓)WebView加载Html文本不能适
  8. android 学习笔记(1)
  9. Android的Http网络请求模型初步
  10. android外包公司—技术分享：Android开发环